Typewriting machine



April 5, 1938. J. A. B. SMITH 2,113,006

TYPEWRITING MACHINE I Filed Oct. 8, 1956 Patented Apr. 5, 19 38TYPEWR-ITING MACHINE Jesse A. B. Smith, Stamford, Conn, assignor toUnderwood Elliott Fisher Company. New York, N. Y., a corporation ofDelaware Application October 8,

11 Claims.

This invention relates to typewriters, and more particularly to masksfor portable typewriters.

The improved mask has a single one-piece cover to overlie both ribbonspools and a top plate projecting forwardly between the sides of themask, and affording clearance for the typebars, and conducing toornamental appearance.

Brackets are slidably mounted on the side walls of the mask, and fixedto the sidewalls of the cover, and are so constructed that the cover maybe moved forward to expose the ribbon spools, and also the type-bars,for inspection and cleaning. 1

The top cover of the mask does not interfere with movement of thecarriage, even when drawn forwardly to permit ribbon changes, and typecleaning or adjustment.

The forward extension of the cover projects beyond its sides, in thesame plane as the sloping front section of the sides of themask,affording clearance for the type-bars and improving the appearance. Itwill not interfere with carriage manipulation either in operating orcleaning positions.

Other features and advantages will hereinafter appear.

In the accompanying drawing,

Figure l is a perspective View looking down on an Underwood portabletypewriter towards the upper front left hand corner of the machine, andshowing parts of the ribbon spool cover and parts of the mask brokenaway.

Figure 2 is an inside side elevation, partly in section, and showing theribbon spool cover or top of the mask in the open position; and

Figure 3 is a front view partly in section of one end of the mask, andshowing the ribbon spool cover operating mechanism.

In the Underwood portable typewriter shown in the drawing, a protectingornamental mask it comprises a lower portion which enoases a frame it,which is supported on legs l2. Inwardly-turned flanges IS on the bottomof the mask iii underlie inwardly-turned lugs M on the frame ii, towhich they are tied by screws 55 which are surrounded by felt vibrationkillers it. The mask ill and frame H are further tied together in anyconventional manner, which forms no part of the invention. The side wallof mask it has a concave portion il in the upper edge of the wall forthe passage of the carriage of the typewriting machine. conventionalwith Underwood portable machines, are shown as follows: a comb type-barguide it, keys 29, type-bars 2|, a segment 22, a type-bar Typewriterparts,

1936, Serial No. 104,566

guide 23, a ribbon 24,= ribbon spools 25, a linespace lever 26, areciprocating carriage 21, and a platen 28. The carriage 2lis mounted inany well-known manner and has pivotally fastened thereon the line-spacelever 26 by screw 29.

means of a The novel top or one-piece ribbon spool cover 30 of the'maskIt has a central cut out portion iin the top and ribbon-spool-clearingportions 32 laterally extended'from the rear ends of sides 33 of saidcover 30.

In front a downwardly in clined section 34' extends the full Width ofthe mask l0, said section 34 ending in section 35 to extend across andbetween the side walls of mask lit A front crossbar 3B is locked byscrews El in inclined inturned lugs 39 of the frame it which means ofangle walls of mask Ill;

also supports the pieces 38 secured mask ID by to the side A doubleslide bracket 40,.hav-

to the side wallsflof mask 19.

The lower slide section M of bracket 40 is-positioned between mask Illand frame II and is conn ected to the upper section at by means of avertical section 35, which has a bend 56 to enable the upper slidesection 48 to extend inward over frame H in order to clear the frontedge of t he side wall of mask Hi when the ribbon spool cover is movedforward. Spring retaining brackets vided, mounted on both side walls formaintaining the cover 38 in its tion, as shown by Figure 1, and indot-and-dash lines.

5| are proof mask ill closed posi- Figure 2 by Variations may beresorted to within the scope of the invention, and portions of theimprovements may be used without others.

Having thus described my inventio n, I claim:

1. In a typewriter, in combination; a frame, a platen-carriage mountedthereon; ribbon-spools mounted in front of the platen, and

ported on said frame, and comprising a lower a mask supportion thatencases the'sides and front portion of the frame, a top covering the ribbon-spools and having downwarally-extending sides that aresubstantially superposed on the sides of the low er mask-portion, andbrackets attached to said sides of the top and slidably engaged with theinner side-walls of the lower mask-portion so that said top is slidableforwardly to uncover said position, isv

2. In a typewriter, in combination, a frame, a platen-carriage mountedthereon, ribbon-spools mounted in front of the platen, a system oftypebars, and a mask supported on said frame and comprising a lowerportion that encases the sides and front of the frame, a top coveringthe ribboil-spools, and cut away in the central portion to clear thetype-bars, said top having downwardly-extending sides corresponding withthe sides of the lower mask-portion, a forwardly and downwardly slantingextension from said top, co-operating with the lower mask-portion tomask the front of said frame, and means slidably supporting said top forforward ribbon-spooluncovering displacement of the top.

3. In a portable typewriting machine, having an array of type-bars andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the type-bar array, cover-supporting floats confinedwithin the opposite side-walls of the mask, and supports upon saidside-walls whereon said floats may slide for moving the cover forwardlyto expose the spools and the type-bars.

4. In a portable typewriting machine, having an array of type-bars, andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the type-bar array, cover-supporting floats confinedWithin the opposite side-walls of the mask, and supports upon saidside-walls whereon said floats may slide for moving the cover forwardlyto expose the spools andthe type-bars; said floats, in the form ofbrackets extending down from the opposite sides of the cover and havingforwardly and rearwardly extending guide-slots, and said supports in theform of studs provided upon the interior of the mask and fitting saidguide-slots.

5. In a portable typewriting machine, having an array of type-bars andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the typebar array, cover-supporting floats confinedwithin opposite walls of the mask, and supports upon said walls whereonthe floats may slide for mov ing the cover forwardly to expose thespools and the type-bars; said floats. being normally wholly within thelower portion of the mask and concealed thereby.

6. In a portable typewriting machine, havlng a platen-carriage, an arrayof upwardly and rearwardly swinging type-bars, and ribbon-spools, thecombination with a main frame, of a mask enclosing the same and having asingle one-piece cover to overlie and mask the ribbon-spools and thetype-bar array, cover-supporting floats confined within the oppositeside-walls of the mask, and supports upon said side-walls whereon thefloats may slide for moving the cover forwardly to expose the spools andthe, type-bars; said cover formed to afford, in its closed position, a

floats confined within the opposite side-walls of the mask, and supportsupon said side-walls whereon the floats may slide for moving the coverforwardly to expose the spools and the type-bars; said mask-cover havinga central cut-out portion for affording clearance to the movingtype-bars, and also having side-portions extending outwardly relativelyto said side-walls to form housings for the spools.

8. In a portable typewriting machine, having a keyboard, an array oftype-bars individually movable to and from a common printing point,.

and ribbon-spools, the combination with a main frame, of a maskenclosing the same and having a single one-piece cover to overlie andmask the ribbon-spools and the type-bar array, cover-supporting floatsconfined within the opposite sidewalls of the mask, and supports uponsaid sidewalls whereon the floats may slide for moving the coverforwardly to expose the spools and the type-bars; said mask-cover havinga centrally cut-out top-portion for affording clearance to the movingtype-bars, and having side-portions extending outwardly relatively tosaid sidewalls to form housings for the spools and also having at itsfront a downwardly and forwardly inclined section extending the fullwidth of the mask; said mask having a transverse plate cooperating withsaid.v inclined cover-portion, to serve as a front plate of the maskback of the keyboard.

9. In a portable typewriting machine, having an array of type-bars, andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the type-bar array, floats confined within theopposite side-walls of the mask, and supports upon said side-wallswhereon the floats may slide for moving the cover forwardly to expose,

the spools and the type-bars, each float being in the form of adouble-slide bracket having two slide slots, and two upwardly andoutwardly extending arms fastened to the side-walls of the cover, saidbrackets being slidably mounted by means of screws passing through saidslots in the bracket to spacers secured on the inner sidewalls of themask, said screws and spacers constituting said supports.

10. In a portable typewriting machine, having an array of type-bars andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the type-bar array, cover-supporting floats confinedwithin opposite walls of the mask, and supports upon said walls whereonthe floats may slide for moving the cover forwardly to expose the spoolsand the type-bars, each float being in the form of a double-slidebracket having two, upper and lower, slide slots, and two upwardly andoutwardly extending arms fastened to the side-walls of the cover andslidably mounted by means of screws passing through slots in the bracketto spacers secured on the inner sidewalls of the mask, said screws andspacers constituting said supports, the lower slide section of thebracket being positioned between the mask and the frame, and beingconnected to the upper slide section by means of a vertical sectionwhich has a bend to offset the upper slide section laterally andinwardly over the frame in order to clear the side-wall of the mask whenthe cover is moved forward.

11. In a portable typewriting machine, having an array of type-bars, andribbon-spools, the combination with a main frame, of a mask enclosingthe same and having a single one-piece cover to overlie and mask theribbon-spools and the type-bar array, cover-supporting floats confinedwithin opposite walls of the mask, supports upon said walls whereon thefloats may slide for moving the cover forwardly to expose the spools andthe type-bars, and spring retaining brackets mounted on both sides ofthe mask for maintaining the cover in its closed position.

JESSE A. B. SMITH.

